# Downlodaing UniRef90 full database **URL:** \ **Category:** HUMAnN\ **Created:** [August 6, 2021, 2:56pm UTC](https://forum.biobakery.org/t/downlodaing-uniref90-full-database/2464 "2021-08-06T14:56:54Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Ivy](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Ivy](https://forum.biobakery.org/u/Ivy)\ **Post date:** [August 7, 2021, 11:17am UTC](https://forum.biobakery.org/t/downlodaing-uniref90-full-database/2464/3 "2021-08-07T11:17:06Z")
Hi Eric, @franzosa I am using humann v3.0.0. I have downloaded Chocophlan and Uniref90 full databases running _humann\_databases --download chocophlan full $INSTALL\_LOCATION_ and _humann\_databases --download uniref uniref90\_diamond $INSTALL\_LOCATION_ respectively. I have paired-end data, and converted it to a single file through cat. when I ran _humann --input SLG\_cat.fastq --output humann3\_output_ I am getting an error message **CRITICAL ERROR: The directory provided for ChocoPhlAn contains files ( full\_chocophlan.v296\_201901.tar.gz ) that are not of the expected version. Please install the latest version of the database: 201901b**. I followed this link [Difficulty downloading databases in humann3 - #24 by sagunmaharjann](https://forum.biobakery.org/t/difficulty-downloading-databases-in-humann3/1343/24) and downloaded full\_chocophlan.v296\_201901b.tar.gz and configured the path. when I reran _humann --input SLG\_cat.fastq --output humann3\_output_ I got another error **CRITICAL ERROR: The directory provided for ChocoPhlAn does not contain files of the expected format (ie ‘^[g\_\_][s\_\_]’).** I am unable to detect where I’m doing wrong. Pls help me out. ![Screenshot from 2021-08-07 16-23-28](https://canada1.discourse-cdn.com/flex027/uploads/biobakery/original/1X/a3fe3407e1a2cc06c9a1de1597f1e141a3d3dec7.png) --- _[View the full topic](https://forum.biobakery.org/t/downlodaing-uniref90-full-database/2464)._